Only two popped off, but I am missing all 4, so I wonder if a previous owner lost one or two--and didn't even bother zip-tying them so they wouldn't vibrate loose!
I drove down to see my girlfriend and the valve cover still looks clean. The zip ties are holding so far, but the plastic tabs broke, I don't think that zip ties will last better--although they are vastly cheaper.
I was getting ready to drive home today when Mom said there was a bad snowstorm and it wasn't safe. They have since downgraded their forecast, but I have enough problems as it is, I don't want to add reduced visibility and traction!
I looked up the harness and found a video of a guy saying "Just zip-tie it!" Someone asked "Why didn't you replace part number 90980-11885?!" and someone else linked this video:
It was Google's fourth suggested video, but the second was some site's stolen copy of it!
The part number is 90980-11885 and four were $25.74 from Ballenger Motorsports, but the dealer would have charged over $45!